[SOLVED] What is the quickest way to get from 1025-65535?

PROBLEMCHYLD · 03-05-2021, 02:52 PM

I'm working on something and need this format from 1025-65535 TCP/UDP. Thanks

Code:

192.168.0.12,udp:1024

shruggy · 03-05-2021, 03:01 PM

You mean something like netstat -atun or ss -atun?

PROBLEMCHYLD · 03-05-2021, 03:05 PM

I would like all the ports listed from 1025 to 65535 with every port in between in tcp and udp in the format I posted above.

192.168.0.12,udp:1024
192.168.0.12,tcp:1024
192.168.0.12,udp:1025
192.168.0.12,tcp:1025

etc....

shruggy · 03-05-2021, 03:11 PM

Code:

awk -F'[ \t/]+' '
  $2>1024&&$3~/^(udp|tcp)$/{print "192.168.0.12,"$3":"$2}
  ' /etc/services

bassmadrigal · 03-05-2021, 03:13 PM

If you mean just a list of them, you could use the following script. If desired, you could redirect the output of the script into a file.

Code:

for i in `seq 1025 65535`; do
  echo "192.168.0.12,udp:$i"
  echo "192.168.0.12,tcp:$i"
done

This was just written off the top of my head without testing... it might need a bit of tweaking.

Tonus · 03-05-2021, 03:16 PM

You need text file ? Stdout ?

First in mind comes a for loop

Code:

for i in [1025-65535]; do echo 198.168.0.12,udp:$i/n198.168.0.12,tcp:$i; done

bassmadrigal · 03-05-2021, 03:20 PM

Quote:

Originally Posted by Tonus

You need text file ? Stdout ?

First in mind comes a for loop

Code:

for i in [1025-65535]; do echo 198.168.0.12,udp:$i/n198.168.0.12,tcp:$i; done

Doesn't this require echo -e to support the newline escape?

PROBLEMCHYLD · 03-05-2021, 03:26 PM

Quote:

Originally Posted by bassmadrigal

If you mean just a list of them, you could use the following script. If desired, you could redirect the output of the script into a file.

Code:

for i in `seq 1025 65535`; do
  echo "192.168.0.12,udp:$i"
  echo "192.168.0.12,tcp:$i"
done

This was just written off the top of my head without testing... it might need a bit of tweaking.

Seems to work but it doesn't create a log file. Pretty damn fast too.

for i in `seq 1025 65535`; do
echo "192.168.0.12,udp:$i"
echo "192.168.0.12,tcp:$i"
done < /home/problemchyld/Desktop/ports.log

shruggy · 03-05-2021, 03:26 PM

Quote:

Originally Posted by bassmadrigal

Doesn't this require echo -e to support the newline escape?

Sure. It does require echo -e, curly braces for brace expansion and backslash escape for \n.

Another option

Code:

seq -f'192.168.0.12,udp:%.f' 1025 65536|sed 'p;s/udp/tcp/'

Quote:

Originally Posted by PROBLEMCHYLD

done < /home/problemchyld/Desktop/ports.log

Greater than: >

PROBLEMCHYLD · 03-05-2021, 03:29 PM

Quote:

Originally Posted by shruggy

Sure. It does require echo -e, curly braces for brace expansion and backslash escape for \n.

Another option

Code:

seq -f'192.168.0.12,udp:%.f' 1025 65536|sed 'p;s/udp/tcp/'

Greater than: >

This one liner works too. Thanks but the log file is not listing anything.

PROBLEMCHYLD · 03-05-2021, 03:30 PM

Thanks shruggy and bass and all who helped. Problem solved.

shruggy · 03-05-2021, 03:32 PM

Quote:

Originally Posted by PROBLEMCHYLD

the log file is not listing anything.

Code:

seq -f'192.168.0.12,udp:%.f' 1025 65536|sed 'p;s/ud/tc/' >/home/problemchyld/Desktop/ports.log